4. Choose the correct prefix to make negative adjective (im, ir, il, in). 1. He's a good teacher, but tends to be a bit ______ patient with slow learners. 2. It is an ______ logical statement, because if one part is true, then the other must be false. 3. It is ______ polite to point at people. 4. My friend is very ______ responsible, he never does anything in time. 5. He's very ______ patient. He can't work as a teacher.